20pcs/lot ATS137-PL-B-A unipolar Hall element switch circuit magnetic sensor DIP 3-pin TO-92S
https://www.vogueparade.com/shopping/EN/150412/1/1005003420012627/20pcslot-ats137-pl-b-a-unipolar-hall-element-switch-circuit-magnetic-sensor-dip-3-pin-to-92s//